Patents by Inventor Steven J. Searis

Steven J. Searis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Mixed ethylene alpha olefin copolymer multifunctional viscosity modifiers useful in lube oil compositions
    Patent number: 5427702
    Abstract: The present invention relates to novel multifunctional viscosity modifiers comprising a mixture of derivatized ethylene-alpha olefin copolymers, A and B. Said A copolymer comprising from about 30 to about 60 weight percent monomer units derived from ethylene and said B copolymer comprising from about 60 to about 80 weight percent units derived from ethylene.
    Type: Grant
    Filed: December 11, 1992
    Date of Patent: June 27, 1995
    Assignee: Exxon Chemical Patents Inc.
    Inventors: David Y. Chung, Paul Brice, Steven J. Searis, Mark J. Struglinski, John B. Gardiner